Sign support



FIG. 1 is an exploded isometric view of a sign support showing my new design;

FIG. 2 is an isometric view of an assembled version of FIG. 1 with the sign support mounted in place to a corresponding base and the top lid portion in place.

FIG. 3 is a front elevational view of FIG. 2, with the back elevational view being the mirror image of the front.

FIG. 4 is a right side elevational view of FIG. 3, with the left side elevational view being the mirror image of the right; and,

FIG. 5 is the top view of FIG. 3.

The broken lines in the drawings represent environment structure only and form no part of the claimed design. 

The ornamental design for a sign support, as shown and described. 